Beyond the Signal leak, does the US have a plan for the Red Sea?

Michael Waltz must be the first national security advisor to express foreign policy through emojis. In the now-infamous group on encrypted messaging platform Signal, the former Green Beret colonel and Florida congressman characterized air strikes in Yemen with a trio of icons: a clenched fist, an American flag and a fire.

It is certainly not a traditional vernacular for the Principals Committee of the National Security Council.

It is hard to predict what the fall out will...